Typewriting and like machine



Aprfifl 23, 1936. E s DQDGE TYPEWRITING AND LIKE MACHINE s SheetsSheet 1Filed Jan. 3Q, 1955 INVENTOR A T TOH/VE Y April 193$ E. s. DODGE2,037,76

' YTYPEWRITING AND LIKE MACHINE Filed Jan" 50, 1935 3 Sheets-Sheet 2-/NVENTOF? ATTORNEY Aprifi 21, 1936. E, 5 DODGE TYPEWRITING AND LIKEMACHINE 3 Sheets-Sheet 3 Filed Jan. 30, 1935 ATTORNEY Patented Apr. 21,1936 UNITED STATES PATENT OFFICE TYPEWRITING AND LIKE MACHINE DelawareApplication January 30, 1935, Serial No. 4,119

18 Claims.

My invention relates to typewriting and like machines and is directedmore particularly to the provision of means for locking the line spacingmechanism against actuation.

It has been found heretofore that in some typewriting and like machinesa line spacing operation would at times be inadvertently andautomatically effected when not intended and more particularly when thecarriage was freed from control of its escapement mechanism and wasmoved in the direction of its feed either under control of the tabulatormechanism or on the depression of the usual carriage release key. Suchinadvertent line space would not ordinarily be observed by the operatoruntil after writing was effected which would result in destroying thework; compelling the operator to do it over.

One of the main objects of my invention, generally stated, is to providemeans for overcoming this defect.

Stated more specifically, an object of the invention is to provideautomatically operating means for preventing an actuation of the linespacing mechanism whenever the carriage is freed from control of itsescapement mechanism.

A further object of my invention is to provide adjustable means toenable the locking means by which the line spacing mechanism isprevented from being operated to function properly under differentconditions of use.

A still further object of my invention is to provide simple, inexpensiveand highly effective means of the character specified that may bereadily incorporated in existing machines without modifying, ormaterially modifying, the existing structural features of such machinesand which may be applied thereto and combined therewith in the nature ofan attachment.

To the above and other ends which will hereinafter appear my inventionconsists in the features of construction, arrangements of parts andcombinations of devices set forth in the following description andparticularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters designatecorresponding parts in the different views:

Fig. 1 is a fragmentary side elevation with parts in section of theupper portion of a typewriting machine embodying my invention, the partsbeing shown in normal position,

Fig. 2 is a fragmentary top plan View of parts of the structure shown inFig. 1.

Figs. 3, 4 and 5 are fragmentary, detail side 55 elevations of theautomatically operating locking means for the line spacing mechanism,together with some of the associated parts.

Fig. 6 is a fragmentary side elevation of the line space regulatingmeans and some of the associated parts.

Fig. 7 is an enlarged, detail, transverse sectional View of the lockingmeans and some of the associated parts, the section being taken on theline l-'! of Fig. 1 and looking in the direction of the arrows at saidline.

Fig. 8 is an enlarged, detail, transverse, vertical sectional view ofthe same taken on the line 8-8 of Fig. 4. and looking in the directionof the arrows at said line.

Fig. 9 is an enlarged, detail, perspective view of the bracket on whichthe locking member is mounted.

Fig. 10 is a detail, fragmentary, side elevation of the locking memberand some of the associated parts.

Fig. 11 is an enlarged, detail, side elevation showing a portion of thecarriage releasing means and some of the associated parts.

Fig. 12 is a detail, top plan view as seen from the rear of the machineof a portion of the carriage return mechanism and associated parts.

Fig. 13 is a fragmentary skeletonized side elevation, with partsomitted, of a portion of the tabulator mechanism.

I have shown my invention in the present instance embodied in anelectrified Remington bookkeeping machine in which the features of theinvention may be readily incorporated in the nature of an attachmentwithout modifying, or materially modifying, the existing structuralfeatures of said machine. It should be understood, however, that theinvention is not restricted to its embodiment in said machine but may beemployed in typewriting and like machines generally, wherever foundavailable.

The said electrified Remington bookkeeping machine includesautomatically operating and key controlled power actuated carriagereturn mechanism of the character disclosed in the patent to Hart No.1,978,997 dated October 30, 1934. Said machine also includes poweractuated tabulator mechanism of the character disclosed in the patent toI-Iart No. 1,973,314 dated September 11, 1934, and also includesautomatically operating means for actuating the line spacing mechanismon the return of the carriage of the character disclosed in the patentto Hart No. 1,567,590 dated December '29, 1925. Only fragmentary partsof such mechanisms are shown herein in order to aid in arriving at anunderstanding of the advantages of the present invention and theembodiment thereof in combination with said mechanisms.

I shall first describe parts of the usual form of electrified Remingtonbookkeeping machine including parts of the mechanisms above referred toand shall thereafter describe the devices of my present invention incooperation therewith.

The frame of the machine comprises a base section I5 and an uppersection which includes a top plate I6 mounted on suitable corner posts(not shown) and a tabulator frame I! secured to and which may beregarded as a part of the upper frame section.

A carriage includes a truck designated as a whole by the referencenumeral I8 which is supported in the usual manner to travel over the topplate I6 from side to side of the machine. Crossed anti-friction rollersI9 coact with grooved rails 29 of the carriage truck and with fixedguide rails 2| to support the carriage for such traveling movement.

A cylindrical platen 22 is mounted in a platen frame designated as awhole by the reference numeral 23 and which is connected to the maintruck of the carriage by the usual parallel links 24, as disclosed moreclearly in Figs. 3 and 4. The platen. frame carries a centrally disposedroller 25 which bears on a case shift rail 26 operatively connected inthe usual manner to a case shift key (not shown) in order to shift theplaten for upper case writing.

The usual spring drum (not shown) impels the carriage in the directionof its feed under control of the usual carriage escapement mechanism andunder a tabulating operation, as will presently appear.

The escapement mechanism in the present instance comprises an escapementwheel 21 con trolled in its step-by-step movement by feed dogs 28 and 29carried by a dog rocker which is actuated in the usual manner at eachprinting operation or on the actuation of the space key. The escapementwheel is operatively connected to a feed pinion 39 to afford a turningmovement of the latter and a letter space advance of the carriage as theescapement wheel is allowed to be intermittently turned. A feed rack 3|carried by the carriage normally meshes with the feed pinion 39 tocontrol the advance of the carriage under the operation of the carriageescapement. The feed rack 3! is carried by arms 32 pivoted at 33 to therear cross bar or rail 20 of the carriage truck for movement into andout of mesh with the feed pinion 36.

The usual carriage release key 34 (Fig. 1) is provided on a lever 35fulcrumed at 36 to the carriage truck I8. The lower end of this lever isconnected to a rearwardly extending spring returned link 3? which inturn is pivoted at its rear end, as at 38, to a feed rack lifter in thenature of a bell crank lever 39 pivoted to the carriage truck at 49. Thelever 39 is provided with a rearwardly extending arm M which carries acontact shoe 42 that underlies the feed rack SI and is adapted to liftit out of mesh with the feed pinion when the release key 34 isdepressed. A like carriage release key and connections to the feed rackmay be provided at the other side of the carriage.

The devices of my invention are equally effective whether the platen ispermanently maintained in the upper case position for writing only uppercase characters or is shiftable at will from lower to upper caseposition, as will hereinafter more clearly appear. In the former casethe lower, case-shift screw stops 43 are adjusted up to the dotted lineposition shown in Fig. 4 to hold the platen buffer springs 45 againstthe upper screw stops 43 and thus maintain the platen in its upper caseposition. When the construction is arranged for case shifting movementthe lower stops 43 are backed down to the full line position shown inFig. 4.

In addition to the release of the carriage from control of itsescapement mechanism by either of the release keys 34, such a releasealso is effected in the usual manner by an actuation of the tabulatormechanism which may be of any suitable construction but is shown in thepresent instance to be a denominational tabulator such as is disclosedin the above mentioned patent to Hart No. 1,973,314. Such mechanismcomprises column stops 46 adjustable to different points along a columnstop bar 41 fixedly supported on rearwardly extending brackets 48secured to the carriage truck I8. Cooperative with the column stops 46is a set of denominational stops 49 carried by the tabulator frame I!and each of which is controlled by a spring returned actuating stoplever 59. Each lever 59 is controlled by a slide 5| (Fig. 12) which isactuated by an arm 52 that receives a rearward movement from normalposition by power actuated means (not shown) through a link 53. Thepower actuated means are controlled to selectively actuate the stops 49by the usual connections from tabulator levers 54 each carrying atabulator key 55.

The usual carriage releasing means controlled by the tabulator mechanismis employed. Referring more particularly to Fig. 1 it will be seen thatsuch releasing means includes a rack lifting arm 56 which carries a shoe51 that underlies the feed rack 3|. The arm 56 is pivoted at 58 on abracket 59 on the top plate I6. A rearwardly projecting arm 66 isconnected to the arm 56 and carries an adjustable member 6I to which adepending link 62 is pivoted at 63. The link 62 is connected through theusual train of connections (not shown) to a link 64. The upper end ofthis last mentioned link is connected at 65 to a forwardly projectingarm 66 of a frame which is pivoted at 61 to the tabulating frame I I andcarries a universal bar 68 that extends across the series of stop levers50 and coacts therewith. The construction is such the depression of atabulator key 55 results in projecting a denominational or tabulatorstop 49 to effective position and in simultaneously lifting the feedrack 3| out of mesh with the feed pinion 39, thus freeing the carriagefrom control of its escapement mechanism and placing it in the controlof the tabulator mechanism.

The electrified Remington bookkeeping machine is equipped withautomatically operating and key controlled power actuated carriagereturn mechanism such as is disclosed in the above mentioned Hart PatentNo. 1,978,997. I have illustrated only sufiicient of this mechanism inthe accompanying drawings to arrive at an understanding of disadvantageswhich my present invention is intended to overcome.

In addition to the power actuated carriage return mechanism I have shownin the accompanying drawings the automatically operating line spacingmechanism employed in said machine and which is similar to thatdisclosed in the above mentioned Hart Patent No. 1,567,590.

In the accompanying drawings the reference numeral 69 designates acarriage return gear which is carried by a shaft 10 which when thecarriage reaches the end of a line, or an appropriate carriage returnkey (not shown) is actuated, will be connected to a constantly runningmotor through suitable clutches, not shown. Referring to Fig. 12 it willbe seen that the gear 69 is in constant mesh with a rack bar ll carriedby the carriage and mounted for sliding movement thereon. Thus, one endof the rack bar is connected by a pin 12 carried by the carriage andwhich passes through a longitudinally extending slot 13 in the rack bar.The other end portion of the rack bar (see Fig. 11) has a longitudinallyextending groove 14 therein and in which is received the upturnedterminal end 15 of a supporting bracket 16 secured to the carriage. Froma consideration of Fig. 12 it will be understood that when the gear 59is turned by the motor in the direction of the arrow a, the rack bar IIwill first be moved from left to right, or from right to left as theparts appear in Fig. 12, the limit of its independent movement beforethe carriage is returned. This independent movement of the rack bar isutilized to actuate the line spacing mechanism. Thus, it will be seenthat the right hand end of the rack bar ll (left-hand end as the partsappear in Fig. 12) coacts with a depending pin 1'! on a crank arm i8fixed to the lower end of a spring returned rock shaft 19 (see Fig. 1).The shaft i9 is mounted in a bracket 88 carried by the carriage truck.Secured to the upper end of the shaft 19 is a second crank arm '8 whichcarries a depending pin 8| adapted to coact with an off-set ear 82 of aline spacing actuating link 83. The rear end of this link is bifurcatedto provide two arms 85 and 85 with an intervening slot 86. A pin Blextends across a slot 88 (Fig. 9) in a bracket 89 and is received in theslot 86 of the link 83, whereas the arms 84 and 85 of said link arereceived in the slot 88 and are guided by the side walls thereof. Therear end of the link 83 is thus supported and guided for slidingmovement fore and aft of the machine by the bracket 89. This bracket isfixed on and receives a case shifting movement with the platen frame 23so that the rear end of the actuating link t3 also partakes of the caseshifting movements of the platen and platen frame, assuming the stopscrews 53 to be lowered to the Fig. 1 position to permit a case shiftingof the platen.

The forward end of the actuating link 83 is pivoted at 90 to one arm ofa bell crank 9| pivoted at 92 to a side bar of the carriage truck. Theother arm of this bell crank is connected by a link 93 to the usualcrank arm 9 fixed on a spring returned rock shaft 95. The forward end ofa second actuating link 95 is pivoted on the same bolt 90 which connectsthe actuating link 83 to the bell crank 91. The rear end of the link 96is pivoted at 91 to a line spacing pawl 98 which in turn is pivoted at99 to a pawl carrier I09. Said carrier is mounted to turn on the pivotalaxis of the platen and the pawl has a limited movement relativelythereto due to a pin and slot connection NH, 102 between the pawl andcarrier. The initial part of the line spacing movement of the pawl 98 iseffected independently of its carrier and is sumcient to move thehook-like end of the pawl into engagement with a tooth of a line spacingwheel I03 connected to turn with the platen 22. A continued motion ofthe pawl 98 causes it and the carrier IE9 to turn together around theaxis of the platen until the heel I94 of the pawl engages a fixed stopI05 in the path thereof shown indetail in Fig. 6 and has been omitted inFig. 1 to avoid obscuring other features of the construction. Saiddevice comprises a platelike member I06 pivoted to turn on the axis ofthe platen and provided with a laterally projecting lug or stop ID! thatextends into the path of the pawl carrier N10 to limit the returnmovement thereof in a counter-clockwise direction as the parts are shownin Fig. 6. The device I08 may be adjusted to different positions withthe aid of a finger piece 106 which is connected toa locking piece I08that is adapted in the present instance to engage in either of twonotches 109 in a fixed locking segment H6 secured to the platen frame23. A spring (not shown) contained within the finger piece me tends tohold the locking member I88 in. either of the notches I09 and thusretains the line space regulator in either of the two positions to whichit may be adjusted for either single or double line spacing.

It will be understood that the adjustment of the line space regulatingdevice determines the normal position of the pawl 93 with reference tothe line spacing wheel I03 and thus regulates the line spacing foreither single or double spacing, but that said pawl is always moved tothe same point where it is arrested by engaging the stop I05irrespective of the extent of the line space. This fact should be bornein mind in connection with the consideration. of the line space lock ofmy present invention which is to follow.

The machine as thus far described is part of the usual constructionembodied in the electrified Remington bookkeeping machine.

As hereinbefore pointed out it has been found in practice that itsometimes occurs in said machine that an automatic line spacingoperation will be inadvertently effected when not intended. Thus, forexample, when the carriage is released from control of its escapementmechanism and runs rapidly in the direction of its feed, due to liftingthe feed rack 3! out of mesh with its feed.

pinion by an actuation of a tabulator key 55 or either of the carriagerelease keys 34 it will sometimes occur that a line spacing operationwill be effected when not intended. This will be more clearly understoodwhen it is considered that the usual carriage retarder (not shown) ismaintained in geared connection with the carriage return gear 69 and isactuated thereby when the carriage is freed from its escapementmechanism and travels rapidly in the direction of its feed. At such timethere will be a certain amount of resistance offered by the gear 69 andthe parts connected with and controlled thereby to a movement of therack bar H. thus released the parts have the relation indicated in fulllines in Fig. 12 and the resistance mentioned above to the movement ofthe rack bar 'Il tends to hold it while the carriage travelsindependently thereof until the pin 12 reaches the outer end of slot 13.The rack bar will then be picked up and travel with the carriage. Duringthis movement of the carriage relatively to the rack bar H, the pin 11moves with the carriage and. will engage the cooperative and the heldrack bar and bring about an unintentional actuation of the line spacingmechanism. The fact that such unintentional line spacing opera- When thecarriage is tion has been effected is not apt to be observed by theoperator until after the line has been completed and the carriagereturned to begin a new line, even if it is observed then. This resultsin making an entry on thr wrong line and the work sheets may have to bl.destroyed and new ones introduced and the work done over.

The unintentional line spacing operation referred to above does not takeplace at every free run of the carriage or on short tabulating jumpsthereof, but is apt to take place on relatively long tabulating jumps oron a long and rapid run of the carriage under control of a carriagerelease key.

It is one of the main purposes of the present invention to overcomethese difficulties and to provide automatically operating means forpreventing an actuation of the line spacing mechanism whenever thecarriage is freed from control of its carriage feed mechanism and suchmeans will now be described in their cooperation with the mechanismabove described.

Referring more particularly to Figs. 3 to 5 and 7 to 10 it will be seenthat the bracket 89 is somewhat similar to that ordinarily employed buthas been slightly modified in the present instance for cooperation withdevices of my present invention. This bracket is fixedly thoughdetachably secured by screws H! to the right-hand end plate of theplaten frame 23. An upstanding part I I2 is provided on said bracket anda locking member or slide, designated as a whole by the referencenumeral H3, is mounted for vertical sliding movement on the part H2. Thelocking member H3 may be formed from sheet metal and is provided withlongitudinally extending slots I M. A headed, shouldered, screw ||5extends through each of said slots and is received at its threaded endin a tapped opening IS in the part H2. The member H3 is thus mounted onthe platen frame to receive a vertical shifting movement independentlythereof and to afford an independent movement of the bracket 89 with theplaten frame in the case shifting movement of the latter. The lower endof the member H3 is provided with a laterally extending ear pierced witha tapped opening to receive a contact screw l8, a lock nut I I9 holdingthe screw in its adjusted position on the member H3. The lower end ofthis contact screw rests on the top of the feed rack 3| so that when thelatter is disengaged from the feed pinion the member H3 will be moved upfrom, say, the Fig. l to the Fig. 3 position for purposes which willhereinafter appear. The locking member I I3 carries a second laterallyprojecting ear I20 at the rear edge portion thereof. This ear is piercedand tapped to receive a horizontally disposed screw stop or lookingabutment |2| provided with a lock nut I22 to hold it in its adjustedposition on the member H3.

As the parts are shown in various views except Fig. 10 it is presumedthat the line space regulator has been set to afford a double line spaceas indicated in Figs. 1 and 6. In Fig. 10 the parts are shown in normalposition as they appear when the line space regulator has been adjustedto afford a single line space only. However, whether the regulator isset for a single or double line space the limit of line spacing movementof the actuating link 83 will be the same although the normal positionthereof will be changed whether set for single or double line spacingand whether the platen be in the upper or lower case position, the screwstop |2| will coact with the actuating link 83 to lock the line spacingmechanism against effective actuation in the event that the feed rack 3|is freed from its feed pinion 30. On the other hand Whenever the feedrack is in mesh with the feed pinion the locking stop |2| will notinterfere with a complete operation of the actuating link 83 and a linespacing of the platen. Thus, Fig. 1 shows the parts with the platen inthe lower case position and the feed rack 3| in engagement with itspinion 30. It will be observed that at this time the stop screw |2| isin alignment with the slot 86 of the link 83 and will not interfere witha complete actuation of the link 83.

In Fig. 3 the same disposition of the parts is represented except thatthe feed rack 3| has been released from the feed pinion. Whether suchrelease has been effected by an actuation of a tabulator key 55 or acarriage release key 34 is immaterial. It will be seen that at this timethe rack has lifted the locking member H3 so as to bring the screw stop|2| into the path of the upper arm 84 of the actuating link 83 toprevent a complete actuation thereof or an actuation that is sufficientor effective to produce a line spacing movement of the platen.

The parts are represented in Fig. 4 as they appear when the feed rack isin mesh with its feed pinion and the platen has been shifted for uppercase writing. The effect of shifting the platen frame to upper caseposition is to elevate the rear end of the actuating link 83 with it andposition the lower arm 85 thereof above and out of alignment with thescrew stop |2|, so that the line spacing mechanism is free to beactuated at this time. When, however, the parts are in this sameposition except that the feed rack 3| has been disengaged from its feedpinion 30, as shown in Fig. 5, the line spacing mechanism will be lockedagainst effective actuation. This is due to the fact that the elevationof the feed rack is effective to carry the locking member H3 up with itand interpose the screw stop |2| into the path of the lower arm 85 ofthe actuating link. A restoration of the rack 3| from the Figs, 3 and 5positions into mesh with the feed pinion is effective to free the linkfrom the obstruction of the locking device I I3 and a line spacingoperation may be effected.

By adjusting the screws H8 and |2|, I am enabled to regulate the actionof the parts to effectively bring about a locking of the line spacingmechanism as described.

From the foregoing description it will be understood that by the simpleaddition of the locking member I I3 in the nature of an attachment toexisting machines I am enabled to provide, without modifying, ormaterially modifying the existing structural features of such machine, ahighly effective means for locking the line spacing mechanism againsteffective actuation whenever the carriage is released from control ofits escapement mechanism and for overcoming the disadvantageshereinbefore pointed out.

When I use the term carriage herein and in the accompanying claims suchterm is employed in a comprehensive sense to include either a platen orpaper carriage or a carriage which carries the printinginstrumentalities commonly employed in fiat platen machines for example.

It will be observed that both the tabulator key 55 and the carriagerelease key 34 are associated with means for controlling the lockingmember I I3 and the release of the carriage and that therefore, eitheror/and both of said keys and the associated parts constitute keycontrolled means for preventing an actuation of the line spacingmechanism when the carriage is freed from control of its escapementmechanism.

I believe that I am the first to have provided means for preventing anactuation of the line spacing mechanism whenever the carriage is freedfrom control of its carriage feed mechanism and wish to be understood asclaiming the same broadly, irrespective of the character of typewritingand like machines in which such means may be included.

Various changes may be made in the construction without departing frommy invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent is:

1. In a typewriting and like machine, the combination of v a carriage,escapement mechanism therefor including a feed rack movable into and outof effective position, line spacing mechanism, and automaticallyoperating locking means controlled by the movement of said feed rack outof effective position for locking said line spacing means againstoperation.

2. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, carriage releasing means for releasingthe carriage from control of its escapement mechanism, line spacingmechanism, and automatically operating means for preventing an actuationof said line spacing mechanism when the carriage is released fromcontrol of its escapement mechanism.

3. In a typewriting and like machine the combination of a carriage;escapement mechanism therefor including a feed pinion and a feed rackmovable into and out of mesh with said feed pinion; line spacingmechanism; and locking means cooperative with said line spacingmechanism to lock it against operation, said locking means beingcontrolled by the movement of said feed rack out of mesh with the feedpinion to lock the line spacing mechanism against actuation.

4. In a typewriting and like machine, the combination of a carriage;escapement mechanism therefor including a feed pinion and a feed rackmovable into and out of mesh with said feed pinion; line spacingmechanism; and locking means cooperative with said line spacingmechanism to lock it against operation, said locking means beingcontrolled by the movement of said feed rack out of mesh with the feedpinion to lock the line spacing mechanism against actuation and beingcontrolled by the movement of said feed rack into mesh with its feedpinion to free the line spacing mechanism from control of said lockingmeans.

5. In a typewriting and like machine, the combination of a carriage,tabulator mechanism therefor, line spacing mechanism, and automaticallyoperating means for preventing an actuation of said line spacingmechanism when said tabulator mechanism is actuated.

6. In a typewriting and like machine, the combination of a carriage,tabulator mechanism therefor, line spacing mechanism, and automaticallyoperating means for preventing an actuation of said line spacingmechanism when said tabulator mechanism is actuated and for enablingsaid line spacing mechanism to be actuated when the tabulator mechanismreturns to normal position.

'7. In a typewriting and like machine, the combination of a carriage;tabulator mechanism therefor including cooperative tabulator stops, andmeans for freeing the carriage from control of its escapement mechanismwhen one of said tabulator stops is projected into the path of another;line spacing mechanism; and automatically operating means for preventingan actuation of said line spacing mechanism when the carriage is freedfrom control of its escapement mechanism by an actuation of thetabulator mechanism.

8. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, key controlled means for freeing thecarriage from control of its escapement mechanism, line spacingmechanism, and automatically operating means for preventing an actuationof said line spacing mechanism when the carriage is freed from controlof its escapement by said key controlled means.

9. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, key controlled means for freeing thecarriage from control of its escapement mechanism, line spacingmechanism, and automatically operating means for preventing an actuationof-said line spacing mechanism when the carriage is freed from controlof its escapement by said key controlled means and for enabling saidline spacing mechanism to be actuated when the carriage is restored tocontrol of its escapement mechanism.

10. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, a carriage release key, means controlledthereby for freeing the carriage from control of its escapementmechanism, a tabulator key, means controlled thereby for freeing thecarriage from control of its escapement mechanism, line spacingmechanism, and automatically operating means for preventing an actuationof said line spacing mechanism on the actuation of either the saidcarriage release key or tabulator key.

11. In a typewriting and like machine, the combination of a carriage, acase shiftable platen carried thereby, carriage escapement mechanism,and automatically operating means for preventing an actuation of saidline spacing mechanism when the carriage is freed from control of itsescapement mechanism irrespective of the case position in which theplaten may be located.

12. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, means for freeing the carriage fromcontrol of its escapement mechanism, line spacing mechanism, a lockingmember carried by the carriage and movable into and out of the path of apart of said line spacing mechanism, and means controlled by the freeingof the carriage from control of its escapement mechanism for controllingthe movement of said locking member, whereby when the carriage is freedfrom control of its escapement mechanism the line spacing mechanism isautomatically locked against actuation and when the carriage is undercontrol of its escapement the line spacing mechanism is free to beactuated.

13. In a typewriting and like machine, the

combination of a carriage, escapement mechanism therefor, line spacingmechanism, and key controlled means for freeing the carriage fromcontrol of its .escapement mechanism and for simultaneously preventingan actuation of the line spacing mechanism.

14. In a typewriting and like machine, the combination of a carriage;escapement mechanism therefor including a feed pinion and a feed rackmovable into and out of mesh with said feed pinion; line spacingmechanism; and a locking member movable into and out of the path of apart of said line spacing mechanism to prevent an actuation thereof orpermit its actuation, said locking member being controlled in suchmovements by said feed rack.

15. In a typewriting and like machine, the combination of a carriage;escapement mechanism therefor including a feed pinion and a feed rackmovable into and out of mesh with said feed pinion; line spacingmechanism; and a locking slide carried by the carriage and movable intoand out of the path of a part of said line spacing mechanism to preventan actuation thereof or permit its actuation, said locking slide restingon and being controlled in such movements by said feed rack, wherebywhen the rack is released from the feed pinion the locking slide willfunction to lock the line spacing mechanism and when the feed rack is inmesh with its feed pinion the locking slide will release the linespacing mechanism.

16. In a typewriting and like machine, the combination of a carriage;escapement mechanism therefor; line spacing mechanism; and keycontrolled means for freeing the carriage from control of its escapementmechanism and for simultaneously preventing an actuation of the linespacing mechanism, said last mentioned 1'7. In a typewriting and likemachine; the combination of a carriage; escapement mechanism thereforincluding a feed pinion and a feed rack movable into and out of meshwith said feed pinion, line spacing mechanism, a locking member movableinto and out of the path of a part of said line spacing mechanism toprevent an actuation thereof or permit its actuation, said lockingmember being controlled in such movements by said feedrack, and anadjustable contact member carried by said locking member and whichcooperates with said part of the line spacing mechanism.

18. In a typewriting and like machine, the combination of a carriage,escapement mechanism therefor, means for freeing the carriage fromcontrol of said escapement mechanism, line spacing mechanism including abifurcated actuating member, a locking member carried by the carriage,an adjustable contact member carried by said locking member and receivedbetween the arms of the bifurcated actuating member and affording anoperation of the line spacing mechanism when the carriage is undercontrol of its escapement mechanism, and automatically operating meanscontrolled by the release of the carriage from control of its escapementmechanism for shifting said locking member and bringing the adjustablecontact thereon into the path. of one of the arms of said bifurcatedactuating member thus locking the line spacing mechanism againstoperation.

ELBERT S. DODGE.

